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Diffstat (limited to 'Doc/library/sys.rst')
| -rw-r--r-- | Doc/library/sys.rst | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/Doc/library/sys.rst b/Doc/library/sys.rst index 591972e..5039ffa 100644 --- a/Doc/library/sys.rst +++ b/Doc/library/sys.rst @@ -1204,8 +1204,8 @@ always available. Set the system's trace function, which allows you to implement a Python source code debugger in Python. The function is thread-specific; for a - debugger to support multiple threads, it must be registered using - :func:`settrace` for each thread being debugged. + debugger to support multiple threads, it must register a trace function using + :func:`settrace` for each thread being debugged or use :func:`threading.settrace`. Trace functions should have three arguments: *frame*, *event*, and *arg*. *frame* is the current stack frame. *event* is a string: ``'call'``, |